Frostbite - FB304 - 1968-1972 GM A-Body, 1973-1987 Chevy/GMC C10 Truck - LS Swap - 17" Tall Core.

17" Tall Core Radiators fit trucks that came from the factory w/ the upper mounts that bolt-on behind the cowl. 19" Tall Core radiators fits trucks that came from the factory with upper mounts that bolt-on top of the cowl.